A Fourth Planet in the Kepler-51 System Revealed by Transit Timing Variations

Kento Masuda, Jessica E. Libby-Roberts, John H. Livingston +49

Kepler-51 is a $\lesssim 1\mathrm{Gyr}$-old Sun-like star hosting three transiting planets with radii $\approx 6$-$9R_{\oplus }$ and orbital periods $\approx 45$-$130\,\mathrm{day…